According to the report in the Boston Globe, Ozzie is joined by two ex-Microsoft employees, Ransom Richardson and Matt Pope. Ozzie confirmed the bootstrapped venture but offered little detail on what the start-up will focus on. The job posting for a user experience designer seeks someone with experience in both mobile and social who is proficient with iOS and Android apps.

“A new day has dawned as it relates to how we might interact with one another, and a handful of us are just starting work on a new communications product for this new world,” the company said in the posting. “We’ve got huge goals, pragmatic plans, and a sense of urgency.”

In a brief online chat this morning, Ozzie told AllThingsD he wasn’t ready to say much more. However, he did share one more name involved with Cocomo: Boston start-up veteran Ari Goldberg. Goldberg also worked at Microsoft in Boston, but left in November, according to a LinkedIn profile.

At Microsoft, Ozzie inherited the Chief Software Architect mantle that had belonged to Bill Gates. During his time there he helped re-direct Microsoft from focusing on software that ran on a server or desktop toward Internet-delivered services. While his vision can be seen in products like Office 365, Windows Azure and Windows Live, there was considerable tension at times between Ozzie and Microsoft’s product teams.